Brake lining composition



Patented Sept. 13, 1932 I OWEN H. GIBSON,

or PORTLAND, mnrnim BRAKE mums COMPOSITION No Drawing.

The object of my present invention,broad- 1y speaking, is the provision of a new and novel composition to be employed in connection with brake-bands of motor vehicles, or the like, the same being simple in character, easily made and applied, highly eiiicient in its results, and which can and sold at a comparatively low price.

More specifically stated, my object is the provision of a semi-fluid composition of materials of low calorie development, that is to say of maximum'heat resistance, at the same time of low volatility, not susceptible to moisture, and also by its employment conserving the brake lining, greatly accentuating the gripping and holding qualities thereof, but without abrasion or other deleterious effect to the parts to which it is applied.

Other particular objects and advantages of my invention will be suggested in the course of the following description, and that whic is new and useful will be correlated in the appended claim.

My invention contemplates the merit of three chemical elements, or their equivalents, comprising the following: corn oil; petroleum kerosene) and neats-foot oil. These three elements are combined in ap-'v proximately the following proportions: corn oil, 85%; kerosene, 10%;

The corn oil employed for this purpose is to be of the highest grade, pure, and colc pressed, and which minimum of condesation and bulk.

Said three elements are miscible together,

and integrally united when cold, that is without being heated, and when mixed they form an integral homogenous composite readyfor application. 7 1

The composition is to be applied to the inner or contact face of the brake lining, whereby it will contact with and be uniformially distributed throughout the said face or surface of the lining by which all of the ins terstices and inequalities will be filled and the said surface of the brake lining will be made uniform and dense throughout its extent.

The corn oil is the main or basic element be manufactured,

h or slowing employneats-foot oil 5%. 1

1 to'belimited to the exact has been reduced to its Applieationifiled October 14, 1929. Serial No. 399,701.

of my composition, and it is the gripping or holding element thereof.

The kerosene is simplythe' solvent element, 7

causing the entire composition to be easily handled and applied in a semi-fluid state, but after being applied it is evident that the solvent will evaporateby reason of its volitility.

The neats-foot oil is merely a lubricant, not only softening the brake band and making it more pliable, but preventing the brake band from gripping the brake drum too suddenly, but more in the nature of a cushioning efect.

After being applied to the brake band, or lining, for a short time the composition, being exposed to the air, becomes ceraceous, but

viscid and of the proper consistency to produce the desired braking effect when the brake is applied to the brake lining, as in stopping 7 down a vehicle. 1 One of the utilitarian features of my composition, when applied to brake linings, is its ability to withstand a high degree of heat, as when the brakes are applied. In this connection I have found, by repeated experimentations, that it will resist approximately 500 degrees Fahrenheit, of heat above the normal,'w ithout deterioration, which of course )rovides a wide degree of margin for safety. I desire that it be understood that I am not proportions herein stated or to the particular use set forth;-

Having now fully shown and described my invention, what I claim and desire-to secure by Letters Patent of the United States, is-? A brake lining composition comprising, in approximately the following proportions, corn oil kerosene 10%, and neats-foot oil 5%, the same being mixed togetherwith out heat. 7 I Intestimony whereof I have hereunto subscribed my name to tlis specification.

WEN H. GIBSON. 

